Pan-housing cooling extension



H. H. HART.

-FAN HOUSING COOLING EXTENSION.

APPLICATION FILED IAN- 9, I920.

Reissued Aug. 16, 1921.

/N vszv 1'0 F? HERBERT H. HA RT aua-rrso STATES PATENT orricaf nsasnm a. near, or owner, camromwu.

FAN-HOUSING COOLING EXTENSION.

Specification of Ite issaed Letters Patent. neiggued Aug. 16, 1921 0pm.! No. 1,875,688, dated August 13, 1918, Serial No. 188,234, filed Aamilt I4, 1917. Application be reissue filed January 9 1920. Serial Io. 850,460.

To all whom it may con cern:

- Be it known that I, HERBERT H. HART, a. citizen of the United'states of America, residing at Orcutt, county of Santa Barbara, State of California, have invented a certain new and useful Improvement in Fan-Housing Coolin Extensions; and I do hereby declare the gillowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it a pertains to make and use the same.

, y object is to improve the lay-out and construction of a fan housing to be bolted on to the rear of the radiator of any type of automobile, motor truck, or the like, for the purpose of better cooling the radiator and engine by producing a better suction of air, with the aid of the fan, through the. tubes of the radiator, and concentrating this cool air directlv on the engine.

Ordinarily, without my invention, the suction of air is only notlceable in a small spot directl in front of the fan and the cool air is distri )uted mostly around the hood of the engine where it does very little good.

Specifically, my object is to make a fanhousing cooling extension which may be readily applied or removed, which willform a clom joint all around the radiator, which may be pressed tightly-into place. which has non-metallic packing and cushions to form a ti ht joint and prevent rattling. andwhich wil draw air through all parts of the radiating field and concentrate the air upon the hottest mrt of theengine.

The rawing illustrates the invention.

Figure 1 isa vertical cross-section showing my fan housing cooling extension in position for use and attached to the rear side of the radiator and extending backwardly around the fan, the view being taken on the line 1--1 of Fig. 2.

Fi 2 is a \crtical longitudinal section on the line 2-2 of Fig. I.

Fig. 3 is a rspective of the fan housing cooling extension removed from the radiator and fan.

Fig. 4 is an enlarged fragmentary sectional detail on the line 4-4 of Fig. 1.

The radiator 1 has a dome 2 and this dome extends backwardly beyond the radiator tubes, thus producing a flat lower face 3 extending backwardly across the to of the radiator and below the dome. The sflltbwalls 65 1 of the radiator l extcnd backwardly beyond the tubes and form flanges 5 and the rear edges 6 of these flan wardly,'as shown in detail 1n F i 4. verse flanges 7 extend i'nwardfy f below the 'tubes of the radiator 1 is cons are ofl-setin- Tram-,-

sides 4 immediately behind the tubes, and It nected to the lower part of the engine jacket by a pipe 11. The rear side of the chamber in Fig. 2. The intermediate portion ITimmediately surrounding the flat portion lfi, and the rim 18 is constructed to lit the radiator to which the housing is to be a lied. The overflow pipe 19 extends radiator cap 20 through the flat face 3di-- rectly behind the ipe 9 and then extends laterally behind tliie-tubes of the radiator l and downwardly inside 'of one of the flanges 5.

An important feature of the improved radiator extension is that it forms a frame or rim 18 designed to lie snugly against fie substantially rectangular frame portion-- of the radiator surrounding the interstitial field formed by the rad'iatin tubes so that air is drawn through the entire field of the radiitor and is concentrated in the dished extension and discharged through the compare.- tively smaller opening 15. that the top of the opening-16 is d' substantially in the top plane of the motor cylinders so that the maximum efliciencyof the cooling stream of air is obtained because of the direction of the air stream directly toward the body of the motor.

A flange'21 extends backwardly from upper edge of the portion 17 and-has a ing plates 25 and 26 extend vertically along thcsidc edges of the portion 17 from the mm the" t will be notieid" ends of the flange 21, said attaching 'plates bein flat and in a transverse plane. Felt cushion and packing stri s 27 are secured against the rear faces of t ese plates 25 and 26 by rivets and said packing strips fit against the transverse flanges 7. From. the

lower ends of the plates 25 and 26, the corners 28 and 29 and the lower ed e 20 of the "wardllyl portion. 17 areturned inward y and. upwardly to produce the flat flange 31, and a packing' and cushion strip 32 is securedv against this flange andfits against the face 12, there being a depression 33 to ass the pipe 11. When the extension is in place there is a practically air-tight joint all'the Wag around the rim 18. t 1 inge members 34 are secured in horizontalxalinement to extend from the plates 25 and-26 and eachhinge comprises an attaching plate 35 secured to the portion 17, the hinge pin 36 being some distance inside of the outer edge of the plate 26. The second hinge member 37 is secured to the hinge pin 36 and has a portion 38 extending outto the flange5 and a portion 39 bent at rig is angles and fitting against the inner face of the flange 5, and a portion 40 extending backwardly from the portion 39 and fitting against the inner face of the off-set portion 6 and extending backwardly beyond the edge thereof. Screws 41 are; inserted. through the flanges!) and are screw-seated into the portions 39 of the hinges. TWhen the fan housing cooling extension is about to be applied, the'members 37 of the hinges are turned inivardly. as shown in dotted lines in Fig. 4, until the fan h'ous' ing has been seated. Then the members 37 are pressed tightly outwardly to press the houslngfirmlyinto its seat, the portions 39 of the hinges fitting against theiinclined faces 42 between the flanges 5 and the offset portions 6, so that when the screws 41 are applied to draw the. portions 39 tightly against the'flanges 5, the extension will be firmly seated and pressed tightly againstthe packlngs and cushions. The packings and cushions serve to form tight oints and to tion.

.prevent rattling.

The extended ends 43 of the hinge members 37 serve as handles for swinging the hinges into and out of posi- The hood 44 of the engine fits. against the outer faces of the extensionsfi and as soon as the hood is raised the handle por tions 43 are accessible, as clearly shown. in Fig. 4. v

' The opening .15 is smallerthan the diametel of the fan 45 and the fan sets concentric to. the opening 15 andsubstantially half way between the rear face of the radiator L and the cdgeof the margins 16 around theopening.

' l have found by extensive experimenting and use that this construction prmhums good results! The air is drawn through all parts of the radiating field and is concentrated and directed to the hottest part of the enthe hood. a

Various changes may be-made without do partingv from the spir1t-of my invention as claime I claim:

glne, instead of being thrown outwardly to I. An extension adapted to be bolted to i i the rear construction of the radiator of the cooling system of an internal combustion engme for facilitating the induction of air to -increase the cooling effect on the radiator and to facilitate the cooling of the engine; said extension consisting of a dished. plate having its larger and frontportion con- .structed andarranged to include substantiallythe entire erforatearea at the back of the radiator tu es, and havingin its back portion an outlet opening to converge-the induced, stream of air and direct the same toward the motor. 2. An extension adapted to be. bolted to the rear construction of the radiator of the cooling system of an internal combustion engine for facilitating the induction of air to increase the cooling effect on the radiator and to facilitate the coolin of the engine;- said extension 'consisting of a dishedplate having its larger and front portion constructed and arranged to include substantially the entire erforate area at the back. of-the radiatortu es, and having initsback portion an outlet opening to'converge the induced stream of'air and direct thesa'rne "toward the motor; the margin of the frame being notched to permit adjustment of the same over construction parts of, the organization of the motor. 1 v p 3; An extension adapted to be bolted to the rear construction of the radiator of the cooling system of an internal combustion engine for facilitating the induction of air to increase the cooling effect on the radiator and to facilitate the coolingof the engine; said extension consisting of adished rec tangular plate having its. larger and front portion co'nstrllcted and arranged to include substantially the entire perforate area at the back of the radiator tubes, and having in its back portion an outlet opening to converge the inducedstream of air and direct the same toward the motor; and means for securing the extension securely in place at the rear of the radiator.

4+ A water cooling, radiator extension. consisting of a plate or sheet of material sub-H stantially rectangular in planand which extension is dished backwardly from its front rectangular portion to form an air chamber at the rearof'the radiator; the dished bottom ofthe extension hang-provided withem opening for the discharge of air drawn through the interstices of the radiator.

5. A water;cooling-radiator extension aims:

consisting of a plate or sheet of materialsubstantially rectangular in plan and forming a frame-like portion substantially coextensive with the marginal portion of the radiator frame surrounding the interstitial opening and which extension is dished backwardly from its front rectangular portion to form an air chamber at the rear of the radiator; the dished bottom of the extension being provided with an opening for the discharge of air drawn through the interstices of the radiator. i r

6. A water cooling, "radiator extension consisting of a plate or sheet of material substantially rectangular in plan and which extension is dished backward'ly from its front rectangular portion to form an air chamber at the rear of the radiator; the dished. bottom of the extension being provided with an opening for thedischarge of air drawn through the interstices of the radiator; the said opening being materially smaller than the interstitial area of the ra diator frame.

7. The combination with an internal combustion engine and its Water cooling radiator. of an extension adapted to be applied to the back frame structure of the radiator so as to encompass the interstitial area; said extension being dished rearwardly from its front frame-like portion and having an opening of smaller area than the area of the said interstitial area; a motor disposed behind the said extension and in juxtaposition to the opening therein; and a fan driven by the motor and operative to draw air throng the entire interstitial area of the radiator and cause its discharge through the extension 0 ening against the motor.

8. 'I he combination with a motor cooling radiator, of an internal combustion engine, the said radiator having a substantially rectangular interstitial area; a fan arranged at the rear of the radiator; and an extension adapted to be bolted to the rear construction of thc radiator. the said extension having a frame-like front portion encompassing the interstitial area at the back of the radiator and being dished and having a constricted opening at the bottom of the dished portion: whcrcby whonthe fan is driven a currcnt of air is drawn through the cntire interstitial area of the radiator and dispelled through the constricted opening against an adjacent motor.

S). The coi' biiiation with a water cooling radiator having a substantially rectangular Fi'aiiic surrounding the radiating tubes; a

motor disposed in the rear of the radiator and having its water cooling system conncr'tcd to the radiator; an fan interposed between the radiator and the ad acent end of the motor; of an extension for increasing 'prisi fan, 0 a seat extending around the rear face the cooling efliciency of the air on the radiator and on the motor; said extension having a front substantially rectangular frame attachable to the frame structure of the radiator; said frame of the extension encompassof the radiatingfield, a dished plate having an opening in its center, a rim upon the dished plate, a non-metallic acking and cushion upon the rim and fitting theseat, and hinges secured to the rim and-screwed to the radiator to hold the rim right against the cushion and the cushion tight against the seat.

, 11. A fan-housing cooling extension comrising. the combination with a radiator and an, of flanges extending inwardly from the rear edges of the sides of the radiator in transverse alinement with the rear fliit face of the bottom of the radiator, second integral flanges extendin backwardly from the sides of the radiator yond the first flanges, a body formed of sheet metal and having a circular central openin the margin around the opening being su stantiully flat in a transverse plane, the intermediate portion surrounding the flat portion being dished, and the rim around the intermediate portion fitting the first flanges and the rear flat face,

there being cushions secured to the rim between the flan es and flat face; hinges secured to the Sl( es of the intermediate portion and engaging the second flanges; and means securing the hinges to the second flanges.

12. The combination with a radiatorhaviiig flat transverse faces at its rear sides and bottom, of a body formed of sheet metal and having a circular central opening; the margin around the ,opening being transvcrscly flat, the intermediate portion around the mar in being dished, and the rim around the intermediate portion being flat to fit the flat faces of the radiator; and hinges se-.

cured to the sides of the body; there being integral flanges extending ba'clnvardly from the radiator against which the hinzres tit and there being means for securing liehinges to the flanges. J

in testimony whereof I have iiilixed my signature hereto. 1

' HERBERT H. ART. 

